Question Answers

For the arrangement of the potentimeter shown in the figure, The balance point is obtained at a distance 75cm from A when the key k is open The second balance point is obtained at 60 cm from A when the key k is closed. Find the internal resistance of the battery E1. For the arrangement [...]

One of the circuits for the measurement of resistance by potentiometer is shown. The galvanometer is connected at point A and zero deflection is observed is observed at length PJ = 30 cm. In second case the secondary cell is changed. The maximum current in a galvanometer can be 10 mA. Its resistance is 10 [...]

In the circuit shown , R = 10 ohm and V = 100 volt . With switch S open the reading of ammeter is one third its reading when ‘S’ is closed. calculate the resistance of the ammeter ( in ohm ). In the circuit shown R = 10 ohm and V = 100 volt [...]

A substance absorbs CO2 and violently reacts with water. That substance is (a) CaCO3 (b) CaO (c) H2SO4 (d) ZnO A substance absorbs CO2 and violently reacts with water. That substance is (a) CaCO3 (b) CaO (c) H2SO4 (d) ZnO November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Plaster of paris is used (a) In surgery and dentistry (b) As a white wash (c) As a constituent of tooth paste Plaster of paris is used (a) In surgery and dentistry (b) As a white wash (c) As a constituent of tooth paste November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]

MgCl2.6H2O when heated gives (a) Magnesium oxychloride (b) Magnesium dichloride (c) Magnesium oxide (d) Magnesium chloride MgCl2.6H2O when heated gives (a) Magnesium oxychloride (b) Magnesium dichloride (c) Magnesium oxide (d) Magnesium chloride November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Plaster of paris hardness by (a) Giving off CO2 (b) Changing into CaCO3 (c) Uniting with water (d) Giving out water Plaster of paris hardness by (a) Giving off CO2 (b) Changing into CaCO3 (c) Uniting with water (d) Giving out water November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]

Least ionic character is found in (a) Mg (b) Sr (c) Ca (d) Ra Least ionic character is found in (a) Mg (b) Sr (c) Ca (d) Ra November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

The maximum intensity in Young’s double slit experiment is I0. Distance between the slits is d = 5λ, where λ is the wavelength of monochromatic light used in the experiment. What will be the intensity of light in front of one of the slits on a screen at a distance D = 10d? The maximum [...]

In a YDSE with identical slits, the intensity of the central bright fringe is I0.If one of the slits is covered, the intensity at the same point is In a YDSE with identical slits the intensity at the same point is the intensity of the central bright fringe is I0. If one of the slits [...]